Home / 160,840.45-221,986.44-89,243.54

Finding the Fourth Proportional to 160,840.45, 221,986.44 and 89,243.54

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Solution

The fourth proportional to 160,840.45, 221,986.44 and 89,243.54 is: 123,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,840.45 : 221,986.44 = 89,243.54 : x
  2. Step 2: Convert to fraction form
    160,840.45/221,986.44 = 89,243.54/x
  3. Step 3: Cross multiply
    160,840.45x = 221,986.44 × 89,243.54
  4. Step 4: Simplify right side
    160,840.45x = 19,810,855,737.60
  5. Step 5: Solve for x
    x = 19,810,855,737.60/160,840.45
  6. Step 6: Final answer
    x = 123,170.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.